[Russian President Vladimir Putin, right, and his foreign affairs adviser Yury Ushakov listen to Serbian Prime Minister and Progressive Party leader Aleksandar Vucic during their talks in Moscow, Russia, Thursday, May 26, 2016. (Sergei Karpukhin/Pool Photo via AP)]ATHENS, Greece (AP) — Russia's president is travelling to financially struggling Greece for a visit that will include a trip to a secluded, male-only Christian Orthodox sanctuary in the country's north.